NDLI: Distinct effect of hierarchical structure on performance of anatase as an anode material for lithium-ion batteries

Content Provider	Royal Society of Chemistry (RSC)
Author	Wang, Kai-Xue Jiang, Yan-Mei Guo, Xing-Xing Li, Guo-Dong Zhang, Hao-Jie Wang, Jing-Feng Chen, Jie-Sheng
Copyright Year	2013
Abstract	Hierarchically structured titania materials composed of anatase nanoparticles have been prepared via a template-free light-driven fabrication route by employing titanium glycolate (TG) as a precursor. These materials are characterized by electron microscopy, X-ray powder diffraction, and nitrogen adsorption–desorption measurements. The lithium storage properties of the materials are evaluated by galvanostatic charge–discharge, cyclic voltammetry, and electrochemical impedance techniques. At a current density of 0.1 A g−1, the initial lithium insertion/extraction capacities of the hierarchically structured titania reach 262 and 221 mA h g−1, respectively. A discharge capacity of approximately 149 mA h g−1 is retained after being cycled at 1.0 A g−1 for 100 cycles, demonstrating the superior rate performance and high cycleability of the materials. The structural hierarchy featured by the well-defined morphology, high specific surface area, narrow pore size distribution, and high crystallinity has a significant influence on the electrochemical properties of the titania materials. The introduction of a hierarchical structure is envisaged as an efficient approach for the development of novel electrode materials for high performance lithium-ion batteries.
Starting Page	26052
Ending Page	26058
Page Count	7
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	3
Issue Number	48
Journal	RSC Advances
DOI	10.1039/c3ra44731f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Lithium-ion battery Electrode Anatase Lithium Specific surface area Powder diffraction Nitrogen Cyclic voltammetry Transmission electron microscopy Glycolic acid Titanium Electrochemistry Electric current Electrical impedance
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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